ONE BY KOSE
One By Kose MelanoShot P, 40ml
One By Kose MelanoShot P, 40ml
@cosme rating: 5.3/7.0
Directly affects the source of spots (melanocytes)
✓ 100% authentic
✓ Ships from Japan in 3-5 days
✓ Duties prepaid for US orders
✓ Tracked delivery via Japan Post
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What it is
Whitening (Whitening means suppressing melanin production and preventing dark spots and freckles). The active ingredient, kojic acid, directly targets the source of dark spots (melanocytes). [Product name] ONE BY KOSE Melano Shot P (quasi-drug)
Ingredients
Kojic acid*, purified water, dipropylene glycol, 1,3-butylene glycol, ethanol, diglycerin, polyoxyethylene glycerin (26E.O.), trimethylolpropane triisostearate, concentrated glycerin, d-δ-tocopherol, quince extract, glycosyl trehalose/hydrogenated starch hydrolysate mixed solution, Japanese pepper extract, tangerine peel extract, phytoglycogen, evening primrose extract, saxifrage extract, mulberry yellow extract, natural vitamin E, disodium N-stearoyl-L-glutamate, disodium edetate, ethyl oleate, xanthan gum, citric acid, sodium citrate Bisethoxydiglycol Cyclohexanedicarboxylate, Gellan Gum, Cetostearyl Alcohol, Sodium Hydroxymethoxybenzophenone Sulfonate, Polyacrylic Acid Amide, Polyoxyethylene Stearyl Ether Phosphate, Polyoxyethylene Cetyl Ether Phosphate, Polyoxyethylene Lauryl Ether (7E.O.), Polyoxyethylene Hydrogenated Castor Oil, Polyoxyethylene Sorbitan Monooleate (20E.O.), Light Liquid Isoparaffin, Lipophilic Glyceryl Monostearate, Aluminum Hydroxide, Absolute Ethanol, Ethylparaben, Methylparaben, Fragrance, Caramel, Titanium Dioxide*; Unbranded; Other Ingredients
How to use
Use morning and night after toning your skin with lotion. Press the pump to dispense a small amount into your palm and gently massage into your face. When the contents are low, remove the pump and apply directly to your palm. Follow the instructions carefully. Avoid using over a wide area or frequently. When using in conjunction with other whitening cosmetics, use one product at a time, monitoring your skin's condition. Serum on the pump opening or cap may darken slightly when exposed to light or air, but this does not affect the quality of the product. After use, wipe the pump opening clean and close the cap tightly. Do not store in high temperatures or in direct sunlight.
We ship internationally from Japan!
Frequently Asked Questions
Is this authentic?
Yes. We only buy from official retailers and directly from the brands here in Japan. Never resellers, never grey market stock.
We are beauty lovers too, so we know the worry, especially with something you are putting on your face. Authenticity is 100% guaranteed by us.
What are your shipping rates?
On orders under US$75, shipping is a flat US$20 to the United States and US$10 to all other countries.
Orders of US$75 or more ship free, applied automatically at checkout. Your exact shipping cost is shown before you pay.
How long does delivery take?
These estimates are for International Airmail (Tracked) and include 3 to 5 business days of processing in Japan.
- United States: 12 to 15 business days
- Canada, United Kingdom, France, Germany: 9 to 12 business days
- Australia, New Zealand, Denmark, Finland, India, Indonesia, Italy, Netherlands, Spain, Sweden, Switzerland: 10 to 13 business days
- China, Hong Kong, Malaysia, Singapore, South Korea, Taiwan, Thailand, Vietnam: 8 to 10 business days
- Rest of the world: 11 to 18 business days
Actual delivery can be affected by customs clearance, seasonal congestion, or carrier delays in the destination country, all of which are outside our control.
Do you offer express shipping?
Yes. As of 22 July 2026, we offer International Express Mail through Japan Post. The cost is based on order weight and is calculated automatically at checkout.
Will I pay customs or import fees?
US orders: No. As of July 1, 2026, all US orders ship DDP (duties delivered prepaid), meaning we prepay all import duties on our end. Nothing is due at your door.
Orders outside the US: Possibly. Duties and import taxes are set by your local customs authority and are not collected at checkout, so any charges on delivery are your responsibility.
We're working on rolling out prepaid duties for more countries soon.
I received this as a gift ^ ^ I'm almost finished using it. I was starting to notice some faint spots, so it was a gift that came at a great time. The result... they didn't go away. Is it cosmetic surgery after all? Maybe it's just preventative care. But it's easy to use, and I feel like my skin has become even toned ^ ^ I'll probably think about buying it again!
I got a sample at the drug store. It spreads well. It doesn't have a scent, I think, and it's easy to use. My birthday is coming up, so I'm thinking about buying some as a treat.
I'm at an age where I'm starting to worry about dark spots and dullness. I've had faint melasma on both cheekbones, and I thought it would be bad to just ignore it. I tried the tester at my local drugstore and received two more samples. After using it all, I noticed that the round, light spots on my nose where my glasses rest, which I'd always been bothered by, are now much less noticeable. The product will be released around mid-next month, but since the large size is limited edition, I'm considering purchasing the full size. I hope that with continued use, the dark spots I already have will fade. It's smooth and not at all sticky. I've always paired my One by Kose lotion and emulsion, so adding this to my routine will take my skin to the next level. The scent is a lovely green floral, a familiar Kose scent. The packaging is stylish and cool. For the first time in a while, I've seriously wanted a full-size serum. The refills are also available in large sizes, which is great from an eco-friendly perspective. The fact that it is a quasi-drug also gives you peace of mind. It is a bit pricey, but the whitening effect is so strong that it's a price you can compromise on.
I won a prize on Suzykirei, so I'm writing this review. I've had freckles since my student days, and recently I've been worried about faint spots appearing on the high points of my cheeks. When I won, I decided to give it a try and used it for a month. I didn't notice any lightening of the spots or freckles after using this serum, but it did have the effect of brightening my overall skin tone. I used two pumps after applying lotion, morning and night. Since I only applied it to my face, there's a noticeable difference in color between my face and my neck. I plan to apply it to my neck as well. The texture is very smooth and spreads easily, and the scent is nice, so it was easy to use. I also liked how it didn't leave any flakes even when I used it in the morning before applying makeup.
I received this as a gift from Suzykirei, thank you! I'm not sure yet how effective it is on dark spots, but the lovely scent is soothing, and it's easy to use as it penetrates the skin quickly. It also comes with refills, so it's great that it's easy to buy again and again. I'll write another review after I've used up the whole bottle!